Lost Soul Ultra

Lethbridge, Canada • 5-6 Sep 2025

Lost Soul Ultra is an endurance trail race held in the scenic Oldman River valley near Lethbridge, Alberta, Canada, on the traditional lands of the Blackfoot, Cree, and Metis peoples. The event features three distances: 100 miles, 100 kilometers, and 50 kilometers. The course consists of laps approximately 51 km long, each with about 1,100 meters of elevation gain spread over 14 hills. The 100-mile and 100K races start Friday, with cutoffs of 33 and 21 hours respectively, while the 50K begins Saturday with an 11-hour cutoff. Known as the toughest prairie race, it boasts highly praised aid stations and offers Western States Endurance Run qualification. Visit the organization's website for the most recent information.

Race information

100 mi
1100 m+
100 Mile
100 km
100k
50 km
50k
Visit the organization's website for the most recent information.
Trail runs nearby

The Oldman Backyard Ultra is a unique endurance running event held near the Oldman River in Lethbridge, Alberta, featuring a 6.7 km loop course through rolling coulees. As one of Alberta's first Backyard Ultras and a 2026 Silver Ticket event in Canada, it challenges runners to complete laps every ho..